Home / 30,811.32-46,186.20-12,065.76

Finding the Fourth Proportional to 30,811.32, 46,186.20 and 12,065.76

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Solution

The fourth proportional to 30,811.32, 46,186.20 and 12,065.76 is: 18,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.32 : 46,186.20 = 12,065.76 : x
  2. Step 2: Convert to fraction form
    30,811.32/46,186.20 = 12,065.76/x
  3. Step 3: Cross multiply
    30,811.32x = 46,186.20 × 12,065.76
  4. Step 4: Simplify right side
    30,811.32x = 557,271,604.51
  5. Step 5: Solve for x
    x = 557,271,604.51/30,811.32
  6. Step 6: Final answer
    x = 18,086.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.